The video above supplied by Shell and Ferrari does a good job of explaining the extra importance fuel technology will play in 2010.
The ban on refuelling means the teams now have to carry an entire load of fuel with them for a race. Fuel companies like Shell can help F1 teams get a performance advantage by producing fuel which is used more efficiently, meaning the cars can carry less of it, saving weight.
Some of the other implications of the refuelling ban are less obvious. As the video explains, keeping fuel temperature under control is especially important. Last year when cars took on fuel at pit stops it would be at a lower temperature than the fuel already in the car, helping to keep temperatures down.
This year the teams won’t have that benefit, and the fuel suppliers have had to compensate by changing the formula that goes into the tanks.
See the video for more – it features interviews with Fernando Alonso and Felipe Massa and is narrated by James Allen.
NB. I have uploaded the video at higher quality than usual – please let me know if you experience playback problems.